Declension table of ?padāsana

Neuter	Singular	Dual	Plural
Nominative	padāsanam	padāsane	padāsanāni
Vocative	padāsana	padāsane	padāsanāni
Accusative	padāsanam	padāsane	padāsanāni
Instrumental	padāsanena	padāsanābhyām	padāsanaiḥ
Dative	padāsanāya	padāsanābhyām	padāsanebhyaḥ
Ablative	padāsanāt	padāsanābhyām	padāsanebhyaḥ
Genitive	padāsanasya	padāsanayoḥ	padāsanānām
Locative	padāsane	padāsanayoḥ	padāsaneṣu

Compound padāsana -

Adverb -padāsanam -padāsanāt